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Catalyst 6500 Series Switch Command Reference—Release 7.6
78-15328-01
Chapter 2 Catalyst 6500 Series Switch and ROM Monitor Commands
show spantree statistics
port_inconsistency Status of whether the port is in an inconsistent (PVID or port type) state or not.
PORT-based information and statistics
config bpdu's xmitted
(port/VLAN)
Number of BPDUs transmitted from the port. The number in parentheses is the number of
configured BPDUs transmitted by the switch for this instance of spanning tree.
config bpdu's received
(port/VLAN)
Number of BPDUs received by this port. The number in parentheses is the number of configured
BPDUs received by the switch for this instance of spanning tree.
tcn bpdu's xmitted
(port/VLAN)
Number of TCN BDPUs transmitted on this port.
tcn bpdu's received
(port/VLAN)
Number of TCN BPDUs received on this port.
forward trans count Number of times the port state transitioned to FORWARDing state.
scp failure count Number of SCP failures.
Status of Port Timers
forward delay timer Status of the forward delay timer. This timer monitors the time spent by a port in the listening
and learning states.
forward delay timer
value
Current value of the forward delay timer.
message age timer Status of the message age timer. This timer measures the age of the received protocol
information recorded for a port.
message age timer value Current value of the message age timer.
topology change timer Status of the topology change timer. This timer determines the time period in which configured
BPDUs are transmitted with the topology change flag set by the bridge when it is the root
following the detection of a topology change.
topology change timer
value
Current value of the topology change timer.
hold timer Status of the hold timer. This timer ensures that configured BPDUs are not transmitted too
frequently through any bridge port.
hold timer value Current value of the hold timer.
delay root port timer Status of the delay root port timer. This timer enables fast convergence on linkup when the
UplinkFast feature is enabled.
delay root port timer
value
Current value of the delay root port timer.
VLAN-based information and statistics
spanningtree type Type of spanning tree (IEEE, IBM, CISCO).
spanningtree multicast
address
Destination address used to send out configured BPDUs on a bridge port.
bridge ID priority Part of the bridge identifier and is taken as the most significant part bridge ID comparisons.
bridge mac address Bridge MAC address.
bridge hello time Value of the Hello Time parameter when the bridge is the root or is attempting to become the
root.
Table 2-90 show spantree statistics Command Output Fields (continued)
Field Description